<template>
  <div class="wrapper">
    <!-- header部分 -->
    <header>
      <BackButton></BackButton>
      <p>确认订单</p>
    </header>
    <!-- 订单信息部分 -->
    <div class="order-info">
      <h5>订单配送至：</h5>
      <div class="order-info-address" @click="toUserAddress">
        <div class="order-details">
          <div class="contact-row">
            <span class="order-detail-small">
              {{ deliveryaddress.contactName ? deliveryaddress.contactName : '请选择送货地址' }}
            </span>
            <span v-if="deliveryaddress.contactSex" class="order-detail-small contact-space">
              {{ sexFilter_filter(deliveryaddress.contactSex) }}
            </span>
            <span v-if="deliveryaddress.contactTel" class="order-detail-small">
              {{ deliveryaddress.contactTel }}
            </span>
          </div>
          <div class="address-row">
            <span class="order-detail-small">
              {{ deliveryaddress.address }}
            </span>
          </div>
        </div>
        <i class="fa fa-angle-right"></i>
      </div>
    </div>

    <h3>{{ business.businessName }}</h3>
    <!-- 订单明细部分 -->
    <ul class="order-detailed">
      <li v-for="item in cartArr" :key="item.food.foodId">
        <div class="order-detailed-left">
          <img :src="item.food.foodImg" />
          <p>{{ item.food.foodName }} x {{ item.quantity }}</p>
        </div>
        <p>&#165;{{ item.food.foodPrice * item.quantity }}</p>
      </li>
    </ul>
    <div class="order-deliveryfee">
      <p>配送费</p>
      <p>&#165;{{ business.deliveryPrice }}</p>
    </div>
    <!-- 合计部分 -->
    <div class="total">
      <div class="total-left">&#165;{{ totalPrice }}</div>
      <div class="total-right" @click="toPayment">去支付</div>
    </div>
  </div>
</template>

<script setup>
import { ref, computed, onMounted } from 'vue';
import { useRoute, useRouter } from 'vue-router';
import axios from 'axios';
import BackButton from '@/components/backButton.vue';

const route = useRoute();
const router = useRouter();
const businessId = ref(route.query.businessId);
const business = ref({});
const user = ref({});
const cartArr = ref([]);
const deliveryaddress = ref({});

onMounted(async () => {
  user.value = JSON.parse(sessionStorage.getItem('user')) || {}; // 确保 user 有一个默认值
  if (user.value && typeof user.value.userSex !== 'undefined') {
    user.value.userSex = Number(user.value.userSex); // 将 userSex 转换为数字类型
  }
  const daId = route.query.daId;

  if (route.query.contactName) {
    deliveryaddress.value = {
      daId: daId,
      contactName: route.query.contactName,
      contactSex: route.query.contactSex,
      contactTel: route.query.contactTel,
      address: route.query.address,
    };
  } else if (daId) {
    await fetchDeliveryAddress(daId);
  } else if (user.value.userId) {
    deliveryaddress.value = JSON.parse(localStorage.getItem(user.value.userId)) || {};
  }

  try {
    const businessResponse = await axios.get(`/businesses/${businessId.value}`);
    business.value = businessResponse.data.data;
  } catch (error) {
    console.error(error);
  }

  try {
    const cartResponse = await axios.get('/carts', {
      params: {
        userId: user.value.userId,
        businessId: businessId.value,
      },
    });
    cartArr.value = cartResponse.data.data;
  } catch (error) {
    console.error(error);
  }
});

const totalPrice = computed(() => {
  return cartArr.value.reduce((total, cartItem) => {
    return total + cartItem.food.foodPrice * cartItem.quantity;
  }, business.value.deliveryPrice);
});

const sexFilter_filter = (value) => {
  const sex = Number(value);
  return sex === 1 ? '先生' : '女士';
};

const fetchDeliveryAddress = async (daId) => {
  try {
    const response = await axios.get(`/deliveryAddresses/${daId}`);
    deliveryaddress.value = response.data.data;
    localStorage.setItem(user.value.userId, JSON.stringify(deliveryaddress.value));
  } catch (error) {
    console.error(error);
  }
};

const toUserAddress = () => {
  router.push({
    path: '/userAddress',
    query: { businessId: businessId.value },
  });
};

const toPayment = async () => {
  if (!deliveryaddress.value.contactName) {
    alert('请选择送货地址！');
    return;
  }

  try {
    const response = await axios.post('/orders', {
      userId: user.value.userId,
      businessId: businessId.value,
      daId: deliveryaddress.value.daId,
    });
    const orderId = response.data.data.orderId;
    if (orderId > 0 && response.data.state !== 500) {
      router.push({
        path: '/payment',
        query: { orderId: orderId },
      });
    } else {
      alert('商品库存不足,创建订单失败！');
    }
  } catch (error) {
    console.error(error);
    alert('商品库存不足,创建订单失败！');
  }
};
</script>

<style scoped>
.wrapper {
  width: 100%;
  height: 100%;
}
.wrapper header {
  width: 100%;
  height: 12vw;
  background-color: #0097ff;
  color: #fff;
  font-size: 4.8vw;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
}
.wrapper .order-info {
  width: 100%;
  margin-top: 12vw;
  background-color: #0097ef;
  box-sizing: border-box;
  padding: 2vw;
  color: #fff;
}
.wrapper .order-info h5 {
  font-size: 3vw;
  font-weight: 300;
}
.wrapper .order-info .order-info-address {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  user-select: none;
  cursor: pointer;
  margin: 1vw 0;
}
.wrapper .order-info .order-info-address p {
  width: 90%;
  font-size: 5vw;
}
.wrapper .order-info .order-info-address i {
  font-size: 6vw;
}
.wrapper .order-info .order-details .contact-space {
  margin-left: 4vw;
}
.wrapper .order-info .order-details .address-row {
  font-size: 4vw;
  margin-top: 2vw;
}
.wrapper .order-info p {
  font-size: 3vw;
}
.wrapper h3 {
  box-sizing: border-box;
  padding: 3vw;
  font-size: 4vw;
  color: #666;
  border-bottom: solid 1px #ddd;
}
.wrapper .order-detailed {
  width: 100%;
}
.wrapper .order-detailed li {
  width: 100%;
  height: 16vw;
  box-sizing: border-box;
  padding: 3vw;
  color: #666;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.wrapper .order-detailed li .order-detailed-left {
  display: flex;
  align-items: center;
}
.wrapper .order-detailed li .order-detailed-left img {
  width: 10vw;
  height: 10vw;
}
.wrapper .order-detailed li .order-detailed-left p {
  font-size: 3.5vw;
  margin-left: 3vw;
}
.wrapper .order-detailed li p {
  font-size: 3.5vw;
}
.wrapper .order-deliveryfee {
  width: 100%;
  height: 16vw;
  box-sizing: border-box;
  padding: 3vw;
  color: #666;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 3.5vw;
}
.wrapper .total {
  width: 100%;
  height: 14vw;
  position: fixed;
  left: 0;
  bottom: 0;
  display: flex;
}
.wrapper .total .total-left {
  flex: 2;
  background-color: #505051;
  color: #fff;
  font-size: 4.5vw;
  font-weight: 700;
  user-select: none;
  display: flex;
  justify-content: center;
  align-items: center;
}
.wrapper .total .total-right {
  flex: 1;
  background-color: #38ca73;
  color: #fff;
  font-size: 4.5vw;
  font-weight: 700;
  user-select: none;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
}
</style>
